title: Simulium (Asiosimulium) furvum, a new species of black fly (Diptera: Simuliidae) from Thailand.
abstract: Simulium (Asiosimulium) furvum sp. nov. (Diptera: Simuliidae) is described from female, male, pupal, and larval specimens collected from Maewa National Park, Lampang Province, Thailand. This new species represents the fourth member of the subgenus Asiosimulium Takaoka & Chochoote, one of two small black fly subgenera endemic in the Oriental Region. It is characterized by a pear-shaped spermatheca in the female; a ventral plate in the male with a laterally compressed median keel directed ventrally and with a deep notch posteromedially, and aedeagal membrane with stout spines; and by 22 gill filaments in the pupa. Taxonomic notes are provided to separate this new species from three known species, Simulium (Asiosimulium) oblongum Takaoka & Choochote and Simulium (Asiosimulium) wanchaii Takaoka & Choochote, both from Thailand, and Simulium (Asiosimulium) suchitrae Takaoka from Nepal.
authors.affiliation: Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia. takaoka@oita-u.ac.jp
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Takaoka
authors.forename: Wichai
authors.initials: W
authors.lastname: Srisuka
authors.forename: Atiporn
authors.initials: A
authors.lastname: Saeung
authors.forename: Wej
authors.initials: W
authors.lastname: Choochote
mesh_terms: D000818:Animals; D005260:Female; D007814:Larva / Q000033:anatomy & histology / Q000145:classification; D008297:Male; D011679:Pupa / Q000033:anatomy & histology / Q000145:classification; D012843:Simuliidae / Q000033:anatomy & histology* / Q000145:classification* / Q000254:growth & development; D013785:Thailand